Komatsu CD60R-1A-N(S/N 1033-UP (FOR NORTH AMERICA))

The Komatsu CD60R-1A-N is a 6-tonne payload class, 360-degree rotating rubber-tracked crawler carrier built for low-ground-pressure hauling on soft, wet, or unstable terrain. This serial range (S/N 1033-up, for North America) is powered by the Komatsu S6D102E1A, a mechanically-injected, naturally aspirated 5.9-liter inline-6 diesel rated about 99 kW (133 hp) at 2000 rpm with 559 Nm (412 ft-lb) of torque, the same base engine generation used in Komatsu's PC200-6 excavator line. Unloaded operating weight is about 8,500 kg (18,740 lb), rising to roughly 14,580 kg (32,150 lb) loaded to its approximately 6,000 kg (13,230 lb) rated payload. Power reaches the tracks through a two-speed hydrostatic transmission with differential planetary reduction, and the cab/dump-body upperstructure rotates a full 360 degrees so the operator always faces forward. The line was sold with an open ROPS/FOPS canopy as standard and an enclosed cab as an option, and the same chassis and running gear underpin closely related sibling designations from this era, including the -1A, -1B, and a cement-mixer special body variant, the -1E.

Across the CD60R-1 family, the -1A designation reflects an EPA-certified tune of the same S6D102E1A engine rather than a mechanical redesign, and Komatsu carried the platform forward largely unchanged into the CD60R-2 generation with the same power, payload, and weight figures. Because the fuel system is fully mechanical with no engine control module, there are no stored fault codes on this carrier; all monitoring is through lamps and gauges on the panel. That makes these machines mechanically simple to diagnose but dependent on good documentation for the correct service specs. In the used and parts market, the CD60R-1A-N remains relevant because rotating rubber-track carriers in this weight class are still used in forestry, pipeline, utility, and soft-ground construction work where a conventional dump truck or steel-tracked machine can't go. Demand concentrates on undercarriage wear parts (rubber tracks, rollers, bogie components) and the hydrostatic/hydraulic components shared with excavator-derived circuitry, since those wear fastest in the terrain this carrier is built for.

Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.